IDSL/DDS Description

The U-BR1TE V may be deployed in the adjacent to customer position to provide transport for DDS/Frame Relay services with an ADTRAN IDSL OCU-R. This allows pair savings over traditional DDS deployment on local loops up to 18 kft of mixed gauge wire. The IDSL OCU-R is used to terminate the U-interface at the customer’s premises provided by the U-BR1TE V and to convert the 2-wire ISDN signal to a 4-wire AMI DDS signal for presentation to the customer. Together, the U-BR1TE V and IDSL OCU-R allow testing over the ISDN transport network to be performed with traditional DDS methods. In this mode U-BR1TE Vs may be placed in tandem and function as DS0 DPs while the IDSL OCU-R functions as an OCU. See Figure 7 for various U-BR1TE V DDS arrangements.

DDS Testing

For leased mode or DDS applications with the U-BR1TE V the D channel is typically disabled. Without the D channel, standard ISDN EOC loopbacks are unavailable to the ISDN transport system and testing may only be accomplished by using the in-band DDS loopback commands. The U-BR1TE V responds to latching loopback sequences for the DS0 DP. The U-BR1TE V allows the OCU loopback command to pass in-band downstream to the IDSL OCU-R.

Upon receipt of a DS0 DP latching loopback sequence the U-BR1TE V initiates a bilateral loopback for the B1 channel. This bilateral loopback allows testing of the 2B1Q local loop to the IDSL OCU-R simultaneously with network testing to the U-BR1TE V.

SLC 96

1

A

4W DS0 DP

or

OCU

D4

T1

B

4W DS0 DP

or

DCS

D4/DCS

4W

Digital

C

4W DS0 DP

or

DCS

COT/DCS

T1

D

U-BR1TE

1B

RT

SW3

1 - LULT (RT)

2 - ADJ

SW6

Power

2-Wire

Local Loop

E

 

IDSL OCU-R

Customer

Premises

 

Non-ADTRAN U-BR1TE 1B+D

A

4W DS0 DP

or

T1

B2W

Digital

U-BR1TE

CD

U-BR1TE T1

U-BR1TE

2-Wire

Local Loop

E

IDSL OCU-R

Customer

OCU

D4

A

1B

D4

SW3

1 - LULT (RT)

2 - TANDEM

SW6

Normal

4W

BDigital

 

1B+D

1B+D

 

 

 

 

 

COT

 

 

 

RT

 

C

Premises

4W DS0 DP

or

T1

4W DS0 DP

or

4W DS0 DP

D

 

or

T1 U-BR1TE

2-Wire

Local Loop

E

IDSL OCU-R

Customer

2

3

OCU

D4

DCS

D4

DCS

 

1B

 

 

 

D4

 

 

 

 

 

 

D4

 

SW3

 

1

- LULT (RT)

2

- ADJ

Premises

Equipment Requirements

SW6

 

1 D & 3 D: Must be 1104020L4 w/ power enabled

Power

2B: Must be 1104020L4 w/ Power Disabled

2E: Requires local AC power

NOTE: Refer to Table 1 for DIP switch function descriptions.

Figure 7. U-BR1TE V IDSL/DDS Circuit Diagram

10

Section 61104020L4-5, Issue 3

61104020L4-5C

Page 9 Page 11
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ADTRAN D4 U-BR1TE V warranty IDSL/DDS Description, DDS Testing
Page 9 Page 11

D4 U-BR1TE V specifications

ADTRAN D4 U-BR1TE V is a state-of-the-art broadband networking solution designed to support next-generation services with a focus on reliability, flexibility, and high-speed connectivity. As telecommunications companies strive to meet the ever-increasing demand for bandwidth, the D4 U-BR1TE V stands out as a powerful tool that enables service providers to deliver superior services to their customers.

One of the main features of the ADTRAN D4 U-BR1TE V is its versatility in deployment options. This device can be used in various environments, including central offices, remote locations, and outdoor settings. It supports multiple access technologies, such as VDSL2, ADSL2+, and Ethernet, allowing operators to choose the best technology for their specific needs. This flexibility ensures that service providers can efficiently leverage their existing infrastructure while expanding their service offerings.

The D4 U-BR1TE V is equipped with advanced vectoring technology that significantly reduces crosstalk interference, thereby enhancing the overall performance and capacity of DSL connections. This allows operators to extend the reach of their broadband services while delivering higher speeds to end-users. Alongside vectoring, it incorporates G.fast technology, enabling ultra-fast broadband speeds over short copper lines, making it ideal for dense urban areas or multi-dwelling units where bandwidth demand is highest.

In addition to its robust performance capabilities, the ADTRAN D4 U-BR1TE V is designed with operational simplicity in mind. It features an intuitive graphical user interface that streamlines management and monitoring tasks, reducing the burden on network operations teams. Furthermore, its support for cloud-based management platforms allows service providers to automate network monitoring and troubleshooting, ensuring high service levels and quick resolution of issues.

Another notable characteristic of the D4 U-BR1TE V is its scalability. Service providers can easily expand their network by adding additional units as demand grows, ensuring that they can meet the future needs of their customers without extensive overhauls or infrastructure upgrades.

In conclusion, the ADTRAN D4 U-BR1TE V represents a significant advancement in broadband technology. By combining flexibility, high performance, and ease of management, it empowers service providers to deliver enhanced broadband experiences to their customers while efficiently managing their network resources. With its comprehensive feature set and future-proof capabilities, it is an essential component for operators seeking to stay competitive in the increasingly demanding telecommunications landscape.
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